CN203162185U - Smoke extraction fire resisting damper rotating vane - Google Patents
Smoke extraction fire resisting damper rotating vane Download PDFInfo
- Publication number
- CN203162185U CN203162185U CN 201320049076 CN201320049076U CN203162185U CN 203162185 U CN203162185 U CN 203162185U CN 201320049076 CN201320049076 CN 201320049076 CN 201320049076 U CN201320049076 U CN 201320049076U CN 203162185 U CN203162185 U CN 203162185U
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- Prior art keywords
- vane
- rotating
- rotating vane
- fire resisting
- smoke extraction
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Abstract
The utility model discloses a smoke extraction fire resisting damper rotating vane which comprises a vane, wherein a rotating shaft is connected with the center of the vane, and one end portion of the vane is provided with a stepped lapped edge. The vane is further provided with two reinforcing ribs, and the two reinforcing ribs are symmetrically distributed on two sides of the rotating shaft. According to the smoke extraction fire resisting damper rotating vane, the stepped lapped edge is arranged on one end portion of the vane, when a valve is in a closing state, one end portion of an adjacent rotating vane is just placed in the lapped edge, all rotating vanes are in a completely horizontal state after all the rotating vanes coincide, and sealing performance of a smoke extraction fire resisting damper is improved; meanwhile the two reinforcing ribs are arranged on the vane, so on the premise that rigidity of the rotating vane is guaranteed, a thinner steel plate can be adopted to be manufactured into the rotating vane, and material cost is saved.
Description
Technical field
The utility model relates to a kind of fire-fighting with the smoke evacuation fire-closing valve, relates to the rotating vane in a kind of fire-closing valve of discharging fume specifically.
Background technique
The smoke evacuation fire-closing valve is a kind of the most frequently used fire-protection equipment, generally be installed on the pipeline of mechanical smoke extraction system, be opening state at ordinary times, close when spending when flue-gas temperature in the gas exhaust duct reaches 280 during fire, and satisfy leakage cigarette amount and Fire integrity requirement within a certain period of time, play every the effect of cigarette back-fire relief.It constitutes by the framework of a rectangle with several rotating vanes that framework is rotationally connected usually, and rotating vane and actuator are in transmission connection.Fix a rotating shaft on the rotating vane, during smoke evacuation fire-closing valve opening state, all rotating vanes are the shape that is parallel to each other, air-flow can flow through between the rotating vane, when the smoke evacuation fire-closing valve is closed condition, and all rotating vane upsets, the head of adjacent two rotating vanes partly is superimposed together, and stops flowing of flue gas.But because existing smoke evacuation fire-closing valve rotating vane is generally the square flat board of a block length, superimposed of adjacent two rotating vanes can have certain clearance, cause certain leaking out, simultaneously, for guaranteeing the rigidity of rotating vane, need to adopt thicker steel plate to make rotating vane, cost of material is higher.
The model utility content
For overcoming above-mentioned defective, the utility model aims to provide and a kind ofly can reduce inleakage, can save the smoke evacuation fire-closing valve rotating vane of cost of material simultaneously again.
For achieving the above object, the technical solution adopted in the utility model is: a kind of smoke evacuation fire-closing valve rotating vane, comprise a blade, and the center of described blade is connected with a rotating shaft, and an end of described blade has a step-like scrap (bridge).
Also be provided with two stiffening ribs on the described blade, described two stiffening ribs are symmetrically distributed in two limits of rotating shaft.
Adopted smoke evacuation fire-closing valve rotating vane of the present utility model, owing to have a step-like scrap (bridge) in an end of blade, when the valve closed condition, the end of an adjacent rotating vane just places in this scrap (bridge), be complete level after making all rotating vanes superimposed, improved the seal of smoke evacuation fire-closing valve; Simultaneously, by two stiffening ribs are set at blade, under the prerequisite that guarantees rotating vane rigidity, can adopt thinner steel plate to make, save cost of material.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is closed condition structural representation of the present utility model.
Among the figure: 1-blade, 2-rotating shaft, 3-scrap (bridge), 4-stiffening rib.
Embodiment
As shown in Figure 1, the utility model discloses a kind of smoke evacuation fire-closing valve rotating vane, comprise a blade 1, the center of described blade 1 is connected with a rotating shaft 2, and its innovative point is that an end of described blade 1 has a step-like scrap (bridge) 3.As shown in Figure 2, the length of described scrap (bridge) 3 and the degree of depth need to be complementary with the spacing of adjacent rotating vane, and during the rotating vane assembling, has the one side of scrap (bridge) 3 all in same direction, be exactly specifically when the smoke evacuation fire-closing valve is closed, the limit of another blade 1 adjacent with scrap (bridge) 3 just falls in the scrap (bridge) 3, make that two blades 1 are superimposed after, its connection part is very close to each other substantially.
Another innovative point of smoke evacuation fire-closing valve rotating vane of the present utility model is also to be provided with two stiffening ribs 4 on the described blade 1, and described two stiffening ribs 4 are symmetrically distributed in two limits of rotating shaft 2.Usually stiffening rib 4 can directly be suppressed when making blade 1 and form, and semicircular arc can be adopted in its cross section, and the protrusion direction of stiffening rib 4 is preferably opposite with the protrusion direction of rotating shaft 2 joints.
Claims (2)
1. a smoke evacuation fire-closing valve rotating vane comprises a blade (1), and the center of described blade (1) is connected with a rotating shaft (2), it is characterized in that an end of described blade (1) has a step-like scrap (bridge) (3).
2. smoke evacuation fire-closing valve rotating vane according to claim 1 is characterized in that also being provided with two stiffening ribs (4) on the described blade (1), and described two stiffening ribs (4) are symmetrically distributed in two limits of rotating shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049076 CN203162185U (en) | 2013-01-24 | 2013-01-24 | Smoke extraction fire resisting damper rotating vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049076 CN203162185U (en) | 2013-01-24 | 2013-01-24 | Smoke extraction fire resisting damper rotating vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162185U true CN203162185U (en) | 2013-08-28 |
Family
ID=49023370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049076 Expired - Fee Related CN203162185U (en) | 2013-01-24 | 2013-01-24 | Smoke extraction fire resisting damper rotating vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257835A (en) * | 2015-10-29 | 2016-01-20 | 浙江浩龙风机有限公司 | High-airtightness and high-fireproofness fireproof valve |
| CN105546131A (en) * | 2015-08-24 | 2016-05-04 | 朱小菊 | Firefighting ventilating duct valve |
| CN107893857A (en) * | 2017-12-05 | 2018-04-10 | 绍兴市福乐达通风设备有限公司 | The enhanced rotating vane of smoke exhaust fire damper |
-
2013
- 2013-01-24 CN CN 201320049076 patent/CN203162185U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546131A (en) * | 2015-08-24 | 2016-05-04 | 朱小菊 | Firefighting ventilating duct valve |
| CN105257835A (en) * | 2015-10-29 | 2016-01-20 | 浙江浩龙风机有限公司 | High-airtightness and high-fireproofness fireproof valve |
| CN107893857A (en) * | 2017-12-05 | 2018-04-10 | 绍兴市福乐达通风设备有限公司 | The enhanced rotating vane of smoke exhaust fire damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160804 Address after: 312352, Zhejiang province Shaoxing city Shangyu District Dongguan Street consciousness Wang Industrial Park Patentee after: SHAOXING FULEDA VENTILATION EQUIPMENT CO.,LTD. Address before: 312352, Zhejiang City, Shangyu province Dongguan Street, Wulipai 104 National Road North Patentee before: Shangyu Xingsheng Ventilation Equipment Factory |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of Shaoxing Fuleda Ventilation Equipment Co.,Ltd. The person in charge Document name: Patent Right Termination Notice |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 |